← Volver a CVEs

CVE-2026-34429

MEDIUM

5.4

Descripcion

Vvveb prior to 1.0.8.1 contains a stored cross-site scripting vulnerability that allows authenticated users with media upload and rename permissions to execute arbitrary JavaScript by bypassing MIME type validation and renaming uploaded files to executable extensions. Attackers can prepend a GIF89a header to HTML/JavaScript payloads to bypass upload validation, rename the file to .html extension, and execute malicious scripts in an administrator's browser session to create backdoor accounts and upload malicious plugins for remote code execution.

Detalles CVE

Puntuacion CVSS v3.15.4

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioREQUIRED

Publicado4/20/2026

Ultima modificacion4/20/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-79

Referencias

https://delta.cyberm.ca/bugbin/ur66bvB7BYTC9y0eCIk3uzhZQgbjzAkG/(disclosure@vulncheck.com)

https://github.com/givanz/Vvveb/commit/cc997d3359ea5e49a45c132f5dee3bc80fb441d7(disclosure@vulncheck.com)

https://github.com/givanz/Vvveb/releases/tag/1.0.8.1(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/vvveb-stored-xss-via-media-upload-and-rename(disclosure@vulncheck.com)

Correlaciones IOC

Sin correlaciones registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.